OWNERS MANUAL - Sparesmarine.co.uk
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1. RESCUE 406 EPIRB OWNERS MANUAL 1 PURPOSE An Emergency Position Indicating Radio Beacon EPIRB is used to alert search and rescue services in the event of an emergency It does this by transmitting a coded message on the 406 MHz distress frequency This message is relayed via satellite and earth station to the nearest rescue co ordination centre The Rescue 406 works with the Cospas Sarsat polar orbiting satellite system which provides true global coverage The system has an alert delay of typically 45 minutes dependant on when the satellites come into view on the horizon The satellite can determine the position of your Rescue 406 to within 5km 3 miles and the coded message identifies the exact vessel to which the Rescue 406 was registered This information allows the rescue services to eliminate false alerts and launch an appropriate rescue The Rescue 406 also has a secondary distress transmitter This transmits on 121 5 MHz and is used for homing purposes When the rescue services get close this allows them to direction find on the signal To cater for searches at night the Rescue 406 has a bright flashing light that aids final visual location Strobe Program point ON button READY under here button Sea contacts Lanyard 2 DESCRIPTION The Rescue 406 is a powerful self contained distress transmitter It is powered by a light weight Lithium battery that has a replacement interval of 5 years An2. headed screwdriver to remove the front screw Grip the white plastic coil former and lift the circuit board up 3cm 1 Using fingers unplug the white 4 way battery connector The flashing will now cease Collect up all the parts and return them to your nearest service agent DANGER HIGH VOLTAGE Strobe Pull up on coil former Lens dome Front screw Gasket y A connector Circuit boar Hidden Front screws sealing screws Technical specification 406 MHz Transmitter Operating frequency 406 025 MHz 5kHz Power output SW typical Modulation Phase 16KOGID 121 5 MHz Homer Operating frequency 121 5 MHz 3 5kHz Power output 50mW radiated typical Modulation Swept tone AM 8K20A3X Strobe light Type Xenon discharge tube Light output 0 75 Candela minimum Flash rate 23 flashes per minute Battery Type Lithium Sulphur dioxide Operating life 48 hours minimum Shelf life 5 years typical in service Environment Operating temperature 40 C to 55 C class 1 Storage temperature 50 C to 70 C Automatic release depth 4 metres max 13 feet Physical Weight 740 grammes 1 6 Ib Height of body 21 cm 8 2 inches Length of antenna 18 cm 7 inches Approvals Satellite system Cospas Sarsat T 001 T 007 Europe ETS 300 066 Marine Equipment Directive USA USCG FCC approved FCC ID KLS 82 001 Worl
3. if you have a full enclosure it is also marked on the outside of the enclosure The battery expiry date should be checked regularly You will need to replace the battery when e The expiry date has been reached e The Rescue 406 has been used in an emergency situation e A false activation exceeds 2 hours of use The battery is a one shot device It is not rechargeable or user replaceable Battery replacement must be carried out by a McMurdo approved service agent Lithium batteries have special disposal requirements Never incinerate a Lithium battery Never dispose of one at sea Your service agent will deal with battery disposal 9 4 Servicing All servicing must be carried out by a McMurdo approved service agent Always call your nearest agent and talk to their service department before returning suspect equipment You can find your nearest service agent from e The McMurdo web site http Awww mcmurdo co uk e Contacting McMurdo direct see warranty page 9 5 Transportation The Rescue 406 has no special transportation requirements Its Lithium battery has been tested under the transportation of dangerous goods regulations and has been declared as non hazardous for transportation purposes 9 6 GMDSS inspections If your vessel is subject to GMDSS regulations then you can expect to get regular visits from ship surveyors enforcing national legislation They will check the expiry dates and activate the EPIRB to prove it real
4. 4 metres the HRU will operate and cut the plastic rod releasing the coil spring 2 The spring pushes the Rescue 406 and the enclosure lid outwards As the lid pivots off it disengages from the screw head that helped hold it in place The lid is weighted so it rolls over and falls away 3 As the Rescue 406 floats away from the lid it moves out of range of the magnet Once away from the magnet its sea switch becomes armed 4 The sea switch activates The EPIRB then floats on the surface with its strobe light flashing After 50 seconds it makes its first distress transmission A G 4 sea switch X activates Nib NJI p 3 EPIRB arms once N away from magnet N N 1 HRU cuts rod e 2 Lid ejects If you need to manually activate your Rescue 406 it can be freed from the enclosure simply by pulling out the R shaped retaining pin and removing the lid 2 3 Manual Rescue 406 in enclosure Customers who need to mount their Rescue 406 in an exposed position can select the protective enclosure without an HRU fitted SOS406c This means that the Rescue 406 will not float free if your vessel sinks This is known as a category 2 EPIRB You can tell which enclosure you have by reading the category from the front of the enclosure Rescue 406a__ Category 1 HRU fitted Automatic float free Rescue 406c Category2 NoHRUfitted Will not float free 3 CONTROLS ill Y ON 3 1 ON button This is locat
5. 406 it is critical that you choose a position where the released EPIRB will not get trapped by overhangs rigging aerials etc should the vessel ever sink An expanse of flat surface is required to allow the enclosure lid to eject Use the list below to choose a suitable mounting position x e Mount on the outside of the vessel s structure e Mount close to the vessel s navigation position e Consider ease of access in an emergency AVOID Positions with insufficient space for lid ejection and maintenance Positions within 1m 3 of any compass equipment Mounting within 2m 6 of any Radar antenna Direct impact from waves Siting where damage is likely Exhaust fumes chemical and oil sources 7 2 Mounting procedure The enclosure mounts against a flat surface using 4 fixing points See illustration for mounting dimensions or use the backplate of the enclosure as a marking guide To do this pull out the R shaped clip and remove the enclosure lid Note how the Rescue 406 fits then remove it to somewhere dry its sea switch is now armed Offer the back plate into the chosen position and mark through the mounting holes The enclosure is supplied with a set of 25mm 1 stainless steel fixings If you are using the nuts and bolts drill 6mm 1 4 holes where you have marked You will need a 4mm Allen key to tighten the bolts If the rear of the mounting surface is inaccessible use the self tapping screws supplied Alwa
6. ANCE 9 1 Monthly self test amp inspection As an important item of safety equipment your Rescue 406 should be checked regularly The Rescue 406 has a built in test capability that can be used as a confidence check This self test confirms that the battery is healthy that both of the distress transmitters are functional and that the strobe light is operational The self test should be performed monthly It should be performed during the first 5 minutes of the hour to minimise disturbance on the emergency channel If your Rescue 406 is in an enclosure it can be tested through the test window without having to remove the Rescue 406 from the housing If you have a bracket mounted Rescue 406 it will have to be removed from the bracket as described in section 4 3 The procedure for self testing is as follows e On rear of Rescue 406 press and hold the READY button for 10 seconds e The red lamp will come on for 4 seconds to confirm test in progress e When the red lamp goes out the strobe lamp must flash 3 times e lf the strobe does not flash repeat the test then see section 9 4 During these monthly checks you should take the opportunity to visually inspect the Rescue 406 and its mountings for deterioration or damage On the Rescue 406 itself check the following 1 Inspect the Rescue 406 for any obvious damage 2 Check there is no sign of water inside the unit 3 Check that the lanyard is not tied to the vessel structure 4
7. Check the battery is within its expiry date If you have a wall bracket 5 Confirm the bracket top clip springs up when squeezed 6 Check the Rescue 406 is correctly fitted and secure in its bracket If you have an enclosure 7 Check the HRU is within its expiry date category 1 only 8 Confirm the cover can be manually removed with ease 9 Ensure the Rescue 406 base is correctly fitted into the D shaped prongs If the Rescue 406 or its mounting needs cleaning then this should be done using warm soapy water and a damp not wet cloth Do not use detergents or solvents Do not paint the Rescue 406 or its mounting Do not clean with detergents or solvents During vessel cleansing or painting remove the Rescue 406 and its mounting 9 2 HRU replacement If you have a Rescue 406 in an enclosure which is marked as category 1 then it contains a Hydrostatic Release Unit HRU This has a 2 year replacement interval The HRU expiry date should be checked regularly It is marked on the HRU itself and also on the enclosure side label When the HRU expires you can obtain a replacement at a local chandler or direct from McMurdo at the address shown on the warranty page McMurdo will supply an HRU kit Part No 82 210B complete with breakable plastic rod date labels and instruction sheet At a chandler you should ask for a Pains Wessex Breakthrough HRU with an EPIRB kit The HRU replacement procedure is as follows OOND
8. EPIRB is intended to be a one shot device once activated it can operate for 48 hours It operates best while floating in water but it can also be operated while onboard Refering to the previous figure the key components of your Rescue 406 are Antenna This is a flexible whip It must be near vertical when operating If the antenna gets bent gently straighten it out Strobe light This is the glass U tube visible through the clear lens dome When the Rescue 406 is activated it will flash every few seconds Red lamp Visible through the clear dome at the rear of the Rescue 406 This stays on or flashes to show you which mode you are in Program point A dimple in the clear dome through which your supplier can optically input the coded message unique to your Rescue 406 You must register the coded message with local authorities READY button Press this key once to de activate the Rescue 406 Hold it down to run the built in self test which checks basic operation ON button Press this key to manually activate the Rescue 406 The key is protected by a sliding door which is fitted with a tamper seal Sea switch The two screw heads below the keys are sea switch contacts Submerge them in water to activate the EPIRB automatically Lanyard Pull the lanyard spool down to free it Use the cord to tether the Rescue 406 to a survival craft Never tie the 406 to your vessel 2 1 Wall bracket If you purchased the manually activated versio
9. OORWN a lt Nne N N N N N N Rear E clip On the enclosure remove the R clip and pull the cover slowly off Remove Rescue 406 and stow it in a dry place It will activate if wet Hold back the metal lever arm to take up the force of the spring Push the HRU back then upwards out of slot in the lever arm When the rear clip disengages slowly release the lever arm The HRU with its breakable rod can now be lifted free and replaced Using pliers remove the rear E clip and slide off the old HRU Fit the new HRU over the new rod with its label facing outward Refit the washer and the rear E clip Ensure rod moves freely Mark the HRU with an expiry date 2 years into the future Slide the HRU into the slot in the lever arm and push lever arm back Engage rear washer into backplate by pushing back and sliding down Look under the spring and confirm that the washer is fully engaged Slide Rescue 406 into D shaped foot on lever arm Switches outward Refit cover by engaging hole over rod and then snapping into place Refit R clip through top of rod On side of cover remove old HRU expiry date and mark new date Spring Washer Breakable rod Engage washer here Lever arm 9 3 Battery replacement The Rescue 406 uses a 9V Lithium Sulphur Dioxide battery pack McMurdo type 82 140 Typically this will have to be replaced every 5 years The exact battery expiry date is marked on the rear of the Rescue 406 lens dome and
10. cessible then use the self tapping screws supplied and drill 3mm 1 8 holes Always fit washers under the heads of the screws to avoid damage to the plastic 130mm 5 1 6 3 Mounting instruction plate The Rescue 406 is supplied with an instruction plate This is a rigid plate with basic visual instructions for how to operate the Rescue 406 in an emergency The plate varies slightly depending on whether you have a wall bracket or a full enclosure The wall bracket version is illustrated below 58 4mm 2 3 ie Mount plate next to EPIRB Up I gps hi Uys if A t S A S S S ta N SISIL LIISI LLL 116 3mm 4 58 AN AN AN AN AN AN AN AN WN AN WS AN V RAR Uggs RRR ES Uggs i hhh 70mm 2 75 The instruction plate should be mounted next to the EPIRB so that it is easily visible in an emergency Use the four self tapping screws supplied to mount the plate Mounting dimensions are shown in the diagram above or you can use the plate itself at a drilling guide for the screws During vessel maintenance ensure the plate does not get painted over or cleaned down with strong degreasing solvents 7 ENCLOSURE INSTALLATION 7 1 Siting The enclosure should be mounted upright against a vertical bulkhead Alternately it may be mounted horizontally on a flat surface such as a cabin roof No other orientations are recommended NTN A of _ If you have a float free Rescue
11. ch and rescue coordination centre MRCC will receive the message and decode the country code eg 232 They will then access the registration database for that country and expect to find details of your vessel its radio equipment and who to contact If they fail to find this information this may slow down any rescue 8 2 How to register Three registration forms are provided two are for future use and one must be completed now The forms are all pre printed with your EPIRB s identity all you have to do is complete details of your vessel and provide some contact numbers Wherever possible the forms are also pre printed with the correct mailing address and a faxback number If your form does not have a mailing address contact your supplier When you have completed the form you can choose to fax it or mail it It is usual to receive confirmation when you register In the USA you will also receive a Decal sticker which you must fit to the EPIRB itself The Decal is proof of registration Not having a Decal is an offence Useful registration contacts are USA Sarsat Beacon Registration UK EPIRB Registery E SP3 RM3320 FB 4 HM Coastguard Southern NOAA 5200 Auth Road Pendennis Point Castle Drive Suitland MD 20746 4304 Falmouth TR11 4WZ Tel 1888 212 7283 Fax 301 568 8649 Tel 01326 211569 Fax 01326 319264 8 3 Warranty form Please complete the warranty form supplied and fax or mail it to McMurdo Failure to do t
12. cue authorities and tell them it was a false alarm so that they can stand down any rescue services Use any means at your disposal to make contact Often this can be by VHF radio to the local coastguard or mobile phone if you are within coastal range but MF HF DSC and Inmarsat A B C M may also be used Useful contacts are Country Region Telephone What to report USA Atlantic Gulf of Mexico 212 668 7055 EPIRB Unique ID UIN Pacific 510 437 3700_ Date time amp duration 800 323 7283 Cause Of activation SECETA l 5 2 De activate the EPIRB If the Rescue 406 was activated by mistake then de activation is simple Remove the Rescue 406 from any water and dry its sea switch contacts Wait about 8 seconds for the sea switch to de activate If Rescue 406 is still flashing then it may have been turned on manually Slide the switch cover fully to the right Press and release the READY button The Rescue 406 should now stop flashing Refit the Rescue 406 into its mounting bracket correctly Modern EPIRBs have sea switches and it is not uncommon for the sea switch to activate in rough seas or heavy rain simply because the EPIRB has been badly fitted in its mounting bracket The Rescue 406 bracket has a hidden magnet to hold the Rescue 406 in an off state If the Rescue 406 is wrongly fitted the magnet does not do its job and heavy seas may activate the sea switch The simple cure is to ensure the Rescue 406 is cor
13. dwide IEC1097 2 Meets IMO regulations A662 16 A694 17 A810 19 This device complies with the GMDSS provisions of part 80 of the FCC rules 20 WARRANTY This product is covered by a 12 month non transferable manufacturer s limited warranty commencing on the date of purchase The warranty covers faulty materials and workmanship during manufacture but excludes normal wear and tear wilful damage negligence abnormal conditions and failure to follow manufacturer s instructions The manufacturer shall not be liable for any consequential loss or damage caused by a defective product A copy of the full warranty conditions is available upon request This warranty statement does not affect your statutory rights Claims under warranty should be directed to your local dealer with supporting proof of purchase Technical advice and information on local dealers can be obtained from the address given below McMurdo Ltd Rodney Road Fratton Portsmouth Hampshire United Kingdom PO4 8SG TEL 44 0 1705 775044 FAX 44 0 1705 819087 Email sales mcmurdo co uk Record Serial No visible through dome McMurdo Ltd 1998 The Copyright on this manual is owned by McMurdo Ltd This manual or information from this manual may not be copied or otherwise transferred to third parties using any media including electronic without prior written permission of McMurdo Ltd McMurdo Ltd Rodney Road Fratton Portsmo
14. ed behind a sliding door to protect it from accidental activation The sliding door has a tamper seal to show if the Rescue 406 has been activated before The Rescue 406 can be manually activated by sliding the door to the left breaking the seal and then momentarily pressing the ON button When activated the Rescue 406 will start to flash immediately It will not make any distress transmissions for the first 50 seconds This gives you a chance to turn it off if you activated it accidentally During the first 50 seconds the red lamp comes on continuously When the red lamp starts to flash the 50 seconds is over and distress transmissions have started 3 2 READY button 7 illl This button de activates the Rescue 406 and it can test it READY Ready Pressing and releasing this button quickly will de activate the Rescue 406 and return it to its ready state When the button is released the strobe and the red lamp will stop flashing Self test Pressing and holding the ready button for about 10 seconds will allow the built in self test to run When the button is held down the red lamp will come on for 4 seconds then go off During this time both the 121 5MHz homer and the 406MHz satellite transmitter make safe transmissions If both of these test transmissions arrive at the antenna with sufficient power then the strobe light will flash 3 times to tell you that all is well If the strobe light does not flash within 10 seconds then
15. his may delay any future warranty claim 8 4 Radio licence An EPIRB is a radio transmitter and must therefore be added to your radio licence If you have been allocated a radio callsign then you already have a radio licence for your VHF or MF radio set You should update your licence to include your EPIRB For further details see your licence or use these contact numbers USA FCC Tel 888 225 5322 Website www fcc gov Forms Form506 506 pdf UK Wray Castle PO Box 5 Ambleside Cumbria LA22 OBF Tel 01539 434662 8 5 Sale or transfer EPIRBs registered in the USA Canada UK and Australia do not need to be re programmed when transferred to a new vessel Simply complete another registration card to inform the authorities of the transfer Use one of the spare cards provided or contact McMurdo for a blank card See warranty section for address For most other countries the EPIRB must be re programmed with either the new vessels Maritime Mobile Station Identity MMSI or its radio callsign whichever is required by the country controlling the new vessel Since the EPIRB identity contains a country code it follows that changing the flag state of the vessel also means the EPIRB must be re programmed Programming can be carried out at McMurdo or any of our designated agents For details of your nearest agent either contact McMurdo using the details in the warranty section or visit the McMurdo web site at www mcmurdo co uk 9 MAINTEN
16. kings except for vessel name In these countries it is left to the customer to mark the vessel name during installation The name must be marked on the rear of the Rescue 406 itself and also on the enclosure if you have one Use the alpha numeric stickers provided to mark the vessel name or its abbreviation on the top line of the Rescue 406 s rear label and again on the enclosure label Protect the markings with a section of the clear sticky label provided You must register your EPIRB with the appropriate authorities Failure to register may slow the rescue and lead to loss of life In the USA failure to register leads to monetary forefeit 8 REGISTRATION 8 1 Overview Every EPIRB is pre programmed with a unique identity before it reaches the customer This is done by the manufacturer or in some cases the distributer The identity includes a 3 digit country code This is the country that takes responsibility for storing that particular EPIRB s registration details In most cases this is the country to which the vessel is flagged The country programmed into your Rescue 406 can be found from its rear identity label You must register with this country MMSI Identity Programmed MV Spirit of Freedom Callsign 15 characters used Category 1 AUTO by the authorities Vessel name here COUNTRY Serial Number Unique Identity Number When you activate your EPIRB in an emergency the nearest maritime sear
17. ly works and they will read the identity message stored inside the EPIRB to check that you have registered it properly Leisure vessels are not subject to these inspections However in some countries passenger and fishing vessels are covered by the legislation 9 7 Fully disabling a Rescue 406 In the unlikely event that your Rescue 406 refuses to turn off then it may have a fault Procedures for dealing with a faulty Rescue 406 are covered in section 5 on false alarms and in simple terms you should do the following e De activate the EPIRB as per section 5 2 e Suppress its signal by wrapping Rescue 406 in metal foil as section 5 3 e Leave for 3 days until the battery is used up We do not recommend any other course of action However if it is absolutely necessary to fully disable a Rescue 406 by unplugging its battery proceed as follows This is a dangerous task and should only be done by a qualified technician WARNING Risk of electric shock Proceed at your own risk no liability accepted Take the Rescue 406 below decks into the dry Locate a flat bladed screwdriver with a long reach Unscrew and retain the front 4 sealing screws Pull the lanyard out and remove the 2 hidden rear screws Do not as yet remove the sea contact screws Lift the lens dome off Remove and retain the grey gasket Avoid touching the circuit board and the glass strobe tube Hold the hexagon shaped pillars and remove the sea screws Use a cross
18. n SOS406m this is supplied with a wall mounting bracket see section 6 The bracket is made from plastic so it will not rust Its top section is sprung loaded so one simple squeeze will quickly release the Rescue 406 allowing it to be carried to a liferaft The wall bracket should be sited in plain view near an emergency exit This bracket is more than just a stowage point it contains a magnet which disarms the Rescue 406 s sea switch If you don t stow the Rescue 406 in its bracket there is a risk of it activating if it gets wet 2 2 Float free enclosure If you purchased the automatically activated version SOS406a also known as the float free version then your Rescue 406 is supplied in a plastic enclosure see section 7 This is much more than just a protective housing it contains a sprung loaded lever which automatically pushes the enclosure lid off and releases the Rescue 406 if your vessel sinks This automatic ejection is controlled by a device called a Hydrostatic Release Unit HRU If the enclosure is submerged then before it reaches 4 metres 13 feet deep the HRU cuts a plastic rod that holds back the spring and the lid is ejected releasing the EPIRB which floats to the surface and switches on automatically The diagram below illustrates this 1 As the vessel sinks the enclosure fills with water The HRU contains a blade which is released due to water pressure acting on a diaphragm Before it reaches a depth of
19. rectly fitted as per section 4 8 or 4 9 5 3 Dealing with a transmitting Rescue 406 In the unlikely event that your Rescue 406 develops a fault and will not turn off then prevent its radio signal from reaching the satellite using one of the following methods e Remove antenna Wrap Rescue 406 in metal foil and take it below decks e Remove antenna and place Rescue 406 in a metal container or locker Leave it in this condition for 3 days until its battery is dead See section 9 4 for instructions on returning the Rescue 406 for servicing Also see section 9 7 9 6 WALL BRACKET INSTALLATION 6 1 Siting The wall bracket should ideally be sited in plain view near an emergency exit When choosing a suitable mounting position you should also consider e Ease of access in an emergency e Mount at least 1 metre 3 from any compass equipment e Allow at least 25mm 1 above the bracket for it to spring open e Allow 18cm 7 for the antenna Heavy bending of the antenna is bad 6 2 Mounting procedure The wall bracket is supplied with a set of stainless steel fixings 25mm 1 in length The bracket mounts against a flat surface using 4 fixing points Offer the bracket into the chosen position and mark through the mounting slots If you are using the nuts and bolts supplied drill 6mm 1 4 holes in the centre of each mark You will need a 4mm Allen key to tighten the bolts If the rear of the mounting surface is inac
20. section 9 3 for battery replacement instructions Slide cover to right zlo 4 8 Re fitting Rescue 406 into wall bracket The Rescue 406 is now in its ready state but its sea switch is still armed and will activate if it gets wet To fully de activate the Rescue 406 it must be returned to its mounting bracket where a magnet hidden in the bracket will make the Rescue 406 safe Follow the appropriate instructions below Insert Push down antenna until clip locks t Push backwards m Push firmly into cup 4 9 Re fitting Rescue 406 into enclosure Offer Rescue 406 into backplate with switches facing outwards Engage base of Rescue 406 into D shaped metal prongs Antenna rests either to left or right of release pin Check Rescue 406 is fully engaged in prongs and resting on foam pad Refit cover by first locating release pin through hole in cover Locate cover onto backplate then snap down over locating lug Refit R clip through hole in end of release pin Switches facing out Fit cover Slide D shaped over O foot into prongs Fit R clip Snap cover onto through pin Yay sop lug 5 FALSE ALARMS False alarms are a serious problem for the rescue services About 90 of EPIRB initiated distress alerts turn out to be false alarms If your EPIRB should cause a false alarm follow the instructions below 5 1 Stand down rescue services It is most important that you contact the nearest search and res
21. t as shown below Note that once activated it will flash immediately but it will not transmit a distress call for 50 seconds This gives you a chance to turn it off if you activated it in error Slide cover to left Breaking tamper seal L A Locate switches Ill on rear O will flash 3 Press ON button Once activated the Rescue 406 must have its antenna near upright and it must have a clear view of the sky for proper operation Lying it on its side or placing it next to a metal wall will impair its range and may fail to alert the rescue services Avoid handling the antenna as this will also impair performance 4 6 De activation If the Rescue 406 was activated by mistake or if the emergency ends then the Rescue 406 can be reset back to its ready state as follows e Remove EPIRB from any water and dry its sea switch contacts Wait 8 seconds for sea switch to turn off If EPIRB is still flashing then it must have been turned on manually e Slide the switch cover fully to the right e Press and release READY button Ose READY button If EPIRB is still flashing then it has a fault Refer to section 5 on False alarms Wi 4 7 Battery condition Z If your Rescue 406 has been activated for a cumulative period in excess of 2 hours then its battery will need replacing This is necessary to ensure that the next time it gets used it will operate for the full 48 hours required by government regulations See
22. there is a fault and the ready button can be released 3 3 Sea switch It is important to realise that the only time the Rescue 406 is completely off is when it is fitted in its mounting bracket As soon as you take it out of its bracket a magnetic switch activates and puts the Rescue 406 into its ready state It will not drain the battery in this state but it will turn on automatically if the sea switch contacts are bridged by water The sea contacts are the two exposed screw heads beside the rear switches Although you can manually control the Rescue 406 with the READY and ON switches the sea switch overrides any manual settings For the manual switches to operate properly the Rescue 406 must be dry so that the sea switch is de activated To ensure the sea switch operates properly in rough seas it has a built in time delay It has to be wet for at least 2 seconds before it will activate and it has to be dry for at least 8 seconds before it will de activate 4 OPERATING PROCEDURE An EPIRB is a piece of life saving equipment Its sole purpose is to call for help It must only be used in situations of grave and imminent danger Misuse can involve a severe penalty 4 1 Sinking If you have a category 1 float free enclosure see marking on enclosure label then if your vessel sinks the Rescue 406 will automatically release itself from its enclosure before it reaches a depth of 4 metres The Rescue 406 will float to the s
23. urface and start to operate because its sea switch is activated If possible the Rescue 406 should be recovered and tied using its lanyard to one V of the liferafts An EPIRB is meant to mark aS fi survivors not the accident scene For best operation leave the Rescue 406 floating in the sea near the liferaft 4 2 Abandon ship If the vessel is sinking and there is time to fetch the EPIRB then this should always be done Release the Rescue 406 from its mounting bracket as described in section 4 3 or 4 4 and carry it to one of the liferafts Once the liferaft is in the water uncoil the lanyard and tie it to the liferaft then throw the Rescue 406 overboard so that it floats next to the liferaft it will operate because its sea switch will activate 4 3 Releasing Rescue 406 from a wall bracket If you have a Rescue 406 fitted into a wall bracket then follow the instructions below to release it from the bracket Squeeze top until it springs up Pull forward Ml a 7 gt t 4 Pull Lift up to 2 down free base 4 4 Releasing Rescue 406 from an enclosure If your Rescue 406 is fitted inside a full enclosure then follow the instructions below to manually release it from its enclosure Q Pull Pull R clip cover from pin off G Pull EPIRB towards you 4 5 Manual activation If the vessel is not sinking but there is imminent danger then remove the Rescue 406 from its bracket and manually activate i
24. uth Hampshire United Kingdom PO4 8SG A member of Chemring group PLC 82 163 004M issue 1
25. ys fit washers under heads of the screws to avoid damaging the plastic OBSTRUCTION FREE AREA 0 8m x 0 5m 32 x 20 440mm 17 3 84mm 3 3 140mm 5 5 7 3 Mounting instruction plate The Rescue 406 is supplied with a plate giving visual instructions on how to operate itin an emergency Mount this next to your EPIRB as explained in section 6 3 7 4 Marking HRU expiry If you are installing a float free Rescue 406 you must now mark the HRU expiry date The HRU has a 2 year in service life which starts as soon as it gets exposure to a marine environment Hence the 2 years starts at installation and it is left to the customer to mark this date during installation A date 2 years into the future should be marked on the HRU body and copied onto the label on the side of the enclosure The HRU is marked by cutting out the corresponding dates on its label The enclosure should be marked using the alpha numeric stickers provided then covering them with the clear sticky label provided but see 7 5 first The preferred date format is month and year for example JUN 2001 7 5 Marking vessel name In most countries it is usual to have your EPIRB programmed by your supplier with the vessel s existing callsign See registration section below Your supplier will then mark all the EPIRB labels accordingly However if your EPIRB was purchased in the USA Canada or UK then your EPIRB will have all the necessary mar
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